An unforeseen polymorph of coronene by the application of magnetic fields during crystal growth

Jason Potticary; Lui R. Terry; Christopher Bell; Alexandros N. Papanikolopoulos; Peter C. M. Christianen; Hans Engelkamp; Andrew M. Collins; Claudio Fontanesi; Gabriele Kociok-köhn; Simon Crampin; Enrico Da Como; Simon R. Hall

doi:10.1038/ncomms11555

An unforeseen polymorph of coronene by the application of magnetic fields during crystal growth

Jason Potticary
, Lui R. Terry
, Christopher Bell
, Alexandros N. Papanikolopoulos
, Peter C. M. Christianen
, Hans Engelkamp
, Andrew M. Collins
, Claudio Fontanesi
, Gabriele Kociok-köhn
, Simon Crampin
, Enrico Da Como
, Simon R. Hall

University of Bristol
Radboud University Nijmegen

Research output: Contribution to journal › Article › peer-review

83 Citations (SciVal)

235 Downloads (Pure)

Abstract

The continued development of novel drugs, proteins, and advanced materials strongly rely on our ability to self-assemble molecules in solids with the most suitable structure (polymorph) in order to exhibit desired functionalities. The search for new polymorphs remains a scientific challenge, that is at the core of crystal engineering and there has been a lack of effective solutions to this problem. Here we show that by crystallizing the polyaromatic hydrocarbon coronene in the presence of a magnetic field, a polymorph is formed in a β-herringbone structure instead of the ubiquitous γ-herringbone structure, with a decrease of 35° in the herringbone nearest neighbour angle. The β-herringbone polymorph is stable, preserves its structure under ambient conditions and as a result of the altered molecular packing of the crystals, exhibits significant changes to the optical and mechanical properties of the crystal.

Original language	English
Article number	11555
Pages (from-to)	1-7
Number of pages	7
Journal	Nature Communications
Volume	7
Early online date	10 May 2016
DOIs	https://doi.org/10.1038/ncomms11555
Publication status	Published - 10 May 2016

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Simon Crampin
- S.Crampinbath.acuk
- Department of Physics - Senior Lecturer
- Condensed Matter Physics CDT
- Condensed Matter and Quantum Materials
Person: Research & Teaching, Core staff
Enrico Da Como
- E.Da.Comobath.acuk
- Department of Physics - Reader
- Condensed Matter and Quantum Materials - Head of Group
- Condensed Matter Physics CDT
Person: Research & Teaching, Core staff

Dual source (Cu and Mo) Single Crystal Diffractometer (SuperNova)
Material and Chemical Characterisation (MC2)
Facility/equipment: Equipment
MC2- X-ray diffraction (XRD)
Material and Chemical Characterisation (MC2)
Facility/equipment: Technology type

Cite this

Potticary, J., Terry, L. R., Bell, C., Papanikolopoulos, A. N., Christianen, P. C. M., Engelkamp, H., Collins, A. M., Fontanesi, C., Kociok-köhn, G., Crampin, S., Da Como, E., & Hall, S. R. (2016). An unforeseen polymorph of coronene by the application of magnetic fields during crystal growth. Nature Communications, 7, 1-7. Article 11555. https://doi.org/10.1038/ncomms11555

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abstract = "The continued development of novel drugs, proteins, and advanced materials strongly rely on our ability to self-assemble molecules in solids with the most suitable structure (polymorph) in order to exhibit desired functionalities. The search for new polymorphs remains a scientific challenge, that is at the core of crystal engineering and there has been a lack of effective solutions to this problem. Here we show that by crystallizing the polyaromatic hydrocarbon coronene in the presence of a magnetic field, a polymorph is formed in a β-herringbone structure instead of the ubiquitous γ-herringbone structure, with a decrease of 35° in the herringbone nearest neighbour angle. The β-herringbone polymorph is stable, preserves its structure under ambient conditions and as a result of the altered molecular packing of the crystals, exhibits significant changes to the optical and mechanical properties of the crystal.",

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AU - Christianen, Peter C. M.

AU - Engelkamp, Hans

AU - Collins, Andrew M.

AU - Fontanesi, Claudio

AU - Kociok-köhn, Gabriele

AU - Crampin, Simon

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AU - Hall, Simon R.

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AB - The continued development of novel drugs, proteins, and advanced materials strongly rely on our ability to self-assemble molecules in solids with the most suitable structure (polymorph) in order to exhibit desired functionalities. The search for new polymorphs remains a scientific challenge, that is at the core of crystal engineering and there has been a lack of effective solutions to this problem. Here we show that by crystallizing the polyaromatic hydrocarbon coronene in the presence of a magnetic field, a polymorph is formed in a β-herringbone structure instead of the ubiquitous γ-herringbone structure, with a decrease of 35° in the herringbone nearest neighbour angle. The β-herringbone polymorph is stable, preserves its structure under ambient conditions and as a result of the altered molecular packing of the crystals, exhibits significant changes to the optical and mechanical properties of the crystal.

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An unforeseen polymorph of coronene by the application of magnetic fields during crystal growth

Abstract

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Profiles

Simon Crampin

Enrico Da Como

Equipment

Dual source (Cu and Mo) Single Crystal Diffractometer (SuperNova)

MC2- X-ray diffraction (XRD)

Cite this